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تعداد آیتم قابل مشاهده باقیمانده : 3 مورد
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Clinical features of more common optic neuropathies*

Clinical features of more common optic neuropathies*
  Optic neuritis Non-arteritic ischemic optic neuropathy Arteritic ischemic optic neuropathy Leber hereditary optic neuropathy Neuroretinitis
Age 20 to 50 years >50 years >70 years 25 to 40 years Children
Sex 2:1 female Equal 3.5:1 female 80 to 90 percent male Equal
Pain Present in >90 percent Present in <10 percent Headache, scalp tenderness, jaw claudication Not present Variable
Onset Hours to days Sudden Sudden Weeks to months Hours to days
Unilateral or bilateral Usually unilateral Usually unilateral; low chance may recur in other eye years later May occur in both eyes in rapid sequence Bilateral, but presentation often unilateral Often bilateral
Funduscopic examination Papillitis present in one-third Papillitis present in most Pale swelling of disc; fundus may also be normal (posterior ischemic optic neuropathy; indicates giant cell arteritis) Disc hyperemia but no swelling; peripapillary telangiectasia Papillitis, macular edema, exudates
Visual field defect Central scotoma Altitudinal (usually inferior) defect Altitudinal or generalized constriction Central or cecocentral defect Variable
Magnetic resonance imaging: optic nerve Inflammation of optic nerve in most (one-third to one-half will have other demyelinating lesions) Often normal May show enhancement Normal Variably abnormal
Prognosis Begins within 2 to 4 weeks, most achieve 20/40 or better Over several months, only 40 percent improve by 3 or more lines Poor once vision loss has occurred; may cause rapid blindness untreated One-third achieve some improvement Most recover fully
* For descriptions of other diagnoses, refer to UpToDate topics on optic neuropathies.
Graphic 51786 Version 5.0

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